On Fri, May 29, 2020 at 07:57:20AM -0400, Borislav Petkov wrote: > On Fri, May 29, 2020 at 01:55:29PM +0300, Dmitry Antipov wrote: > > Hello, > > > > I'm facing the following kernel messages running Debian 9 with > > custom 5.6.12 kernel running on AMD EPYC 7502 - based hardware: > > > > [138537.806814] mce: [Hardware Error]: Machine check events logged > > [138537.806818] [Hardware Error]: Corrected error, no action required. > > [138537.808456] [Hardware Error]: CPU:0 (17:31:0) > > MC27_STATUS[Over|CE|MiscV|-|-|-|SyndV|-|-|-]: 0xd82000000002080b > > [138537.810080] [Hardware Error]: IPID: 0x0001002e00001e01, Syndrome: > > 0x000000005a000005 > > [138537.811694] [Hardware Error]: Power, Interrupts, etc. Ext. Error Code: > > 2, Link Error. > > [138537.813281] [Hardware Error]: cache level: L3/GEN, mem/io: IO, mem-tx: > > GEN, part-proc: SRC (no timeout) > > > > Is it related to some (not so) known CPU errata? > > Who knows. >
There aren't any reported errata related to this that I could find. > > Should I try to update microcode, motherboard firmware, kernel, or whatever > > else? > > Yeah, BIOS update might be a good idea, if there's a newer version for > your board. > I agree. The link settings are generally tuned for the platform. So the platform vendor may have a fix. Thanks, Yazen
